Plans for this week
• Preparation of Master course ...
• Push Thorlabs and order in worst case what is
already available
• Work on DNA setup
• MWPC: Stretch 4 wires on new PCB for testing
or electronics tests
• DAQ discussion with Joan (already started)
• 3D MPGD project: FET Open proposal, phone
meeting to discuss status and plans
Kaputschinsky LED Driver Tests
• LED driver allows to produce light
pulses of <= 10 ns width
• What is the power we can detect
with photodiode 6 cm away from LED
• Pulsed with 1 kHz (readout speed of
photodiode 10-20 Hz)
LED
Photo diode
Kaputschinsky LED Tests
Laser + Diffusor Tests
Photodiode
Continous laser
operation
Diffusor
Laser
Solar Cell Tests
• testing response of solar cell
to laser light
• photodiode in parallel to be
sure that we see light
• laser pulsed
Response
• pulsing down to 1 Hz possible
• but difficult to control power
output
• minimum width of 200 us
• even at higher frequencies
not linear in power
Plans for this week
• Continuing of preparation of Master course ...
• First Thorlabs pieces will arrive today => start
playing with them
• Work on DNA setup
• MWPC: Stretch 4 wires on new PCB for testing,
fixing current PCB, analysing data from this week
• 3D MPGD project: Minutes of this week meeting
and preparing meeting of next week